Turpentine-hack.



D. W. ADAMS.

TURPENTINE HACK.

APPLICATON FILED DEC. 16, 1912. I 1,137,723. Patented Apr. 27, 1915.

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r rrro TURPENTINE-I'IAGK.

Specification of Letters Patent. Patented Apr, 27, 1915,

Application filed December 16, 1912. Serial No. 737,099.

(DEDICATED TO THE PUBLIC.)

To all whom it may concern:

Be it known that I, DANIEL W. ADAMS, a citizen of the United States, and an employee of the Department of Agriculture of the said United States, residing in the city of Glendale Springs, State of North Carolina, whose post-office address is Forestry Service, Washington, District of Columbia, prays that Letters Patent may be granted to him on a new and useful Improvement in Turpentine-Hacks.

This application is made under the act of March 8, 1883, chapter 143 (22 Stat., 625) and the invention herein described and claimed may be used by the Government of the United States or any of its officers or employees in the prosecution of work for the United States or by any person in the United States without the payment of any royalty thereon.

My invention relates to that class of implements adapted for scoring trees in order to obtain sap and gum therefrom.

The object of my invention is to provide an implement simple in construction, easily handled, and particularly useful and effective in chipping turpentine pines, at a uniformly shallow depth, without injuring the trees.

A further object of my invention is to provide an implement in which the depth of the cut may be accurately determined, and still another object of my invention is to provide a cutting implement in which the blade may be sharpened from time to time, without removing or replacing such blade.

The nature, characteristic features, and scope of my invention will be more readily understood from the following description, taken in connection with the accompanying drawings, forming a part hereof, wherein Figure 1 is a side elevation of my turpentine hack; Fig. 2 is a longitudinal sectional view of the same; Fig. 3 is a top plan view of the implement; Fig. 4 is a sectional view on the lines l 1 of Fig. 1; Fig. 5 is a sectional view on the lines 22 of Fig. l; and Fig. 6 is an end elevation of the cutting implement.

Referring to the drawings, A represents the handle of my turpentine hack, and B a steel shank, in which said handle is fitted. Forming an integral part of the shank, B,

is a solidcircular goose-neck, C, employed for receiving and carrying the cutting head, G, which is rigidly secured thereto by means of the bolt, E, which is provided with a grooved end for receiving the removable nut P. The cutting head, G, is engaged by alligator-like teeth, F F, that constitute a part of such cutting head, and the jaw, D. These teeth are oppositely opposed, in order that the cutting head, G, may more firmly engage the jaw, D, when the device is applied with force to the tree. The blow struck and the consequent resistance given by the wood operate in causing the cutting head, G, and jaw, D, to be firmly engaged. The teeth, F F, are alternately inclined planes, separated by vertical faces, and are similar on both the cutting head, G, and jaw, D, and are so constructed and arranged for aifording means for advancing the cutting head, G, when the bit, H, is filed back for sharpening, so it does not overlap the guide or gage bar, I. Adjustment of the parts, as described, enables the cutting implement to be used indefinitely, as the same may be sharpened from time to time, as occasion demands, without removing the cutting head, G, which may be conveniently replaced when it becomes worn.

The gage bar, I, is employed for regulating the depth of the cut to be made by the implement when in operation. Said gage bar is pivoted on a pin, L, mounted on legs, K, forming an integral part of the shank, B. A compression spring, M, embedded in the handle, A, holds the gage bar, I, resiliently down on lifting screw, N. The screw, N, serves the purpose of adjusting the gage bar for controlling the depth of the out, which may be made from one-sixteenth to one-half inch, and said screw also supports the gage bar when properly adjusted in operative position. The shank, B, has a lug, O, in a recess for rendering the gage bar laterally stable.

Q, represents a hook forming a part of the jaw, D, which may be employed for suspending the device from a hanger when the same is not in use.

In using the tool it is only necessary for the operator to grasp the handle with both hands, and draw the implement down across the tree obliquely. The cut made on the tree may be of any required depth, but it should be sufficient to open the resin ducts which have been dried out since the previous hacking, and are consequently closed. Having thus-described my invention, I claim a 1.. In a device of the character described, comprising a handle fitted in a shank, provided with a guide lug, and a gooseneck secured to said shank carrying an adjustably secured cutting head, a gage bar adjusted to said shank and having a recess approximate its center for the reception ofsaid guide lug, a thumbscrew for regulating the depth of the cut disposed transversely to said gage bar and a compression spring embedded in said handle for holdingv said gage bar against said thumbscrew, substantially as specified.

2. In a device of the character'describ'ed, comprising a handle fitted in a shank, said shank provided with a guide lug, and carry- Gopies of this patent maybe obtained for ing a gooseneck having a jaw provided With teeth, a cutting head adjusted to said gooseneck and having teeth atone end for engaging the teeth of said j aw, a gage bar adjusted guide lug, a compression spring embedded in said handle, a thumbscrew for regulating the depth of the out disposed transversely to said gage bar, said spring adapted to hold said gage bar fixedly against said thumbscrew and said guide lug retaining said gage bar laterally stable, substantially as specified.

In testimony whereof, I affix my signature in the presence of two subscribed witnesses.

DANIEL w. ADAMS.

WVitnesses: A. R. VAIL,

F. BABE.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

